A student prepares a solution of potassium nitrate KNO3 containing 95 g dissolved at 40c. This solution is - a) unsaturated
b) none of the above
c) saturated
d) supersaturated

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

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The molar mass of cu is 63.55 g/mol. the number of grams of cu produced in this reaction is